Protective coatings on heat-resistant nickel alloys (review)

The literature on materials for protective coatings on heat-resistant nicke l alloys and methods for their production is reviewed in order to generaliz e the results and determine the principal directions for solution of the pr oblem under consideration. It is shown that a promising approach is the dev elopment of layered combination of adherence, mechanical strength and corro sion and heat resistance. The methods of physical vapor deposition, plasma spraying, and electron-beam deposition remain the principal industrial proc esses for coating deposition.